Hardware Spec Index

Caldera FN-3905 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN3905-ULTRA · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index541 (Case Fans scale)
Category rank#29,046
Street price$19
Power3 W
Performance per dollar28.47
Released2022

Specifications

BrandCaldera
ModelCaldera FN-3905 Ultra
Size120 × 120 × 25 mm
Speed500–2,400 RPM (PWM)
Airflow81.6 CFM
Static pressure2.64 mmH₂O
Noise23 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3905 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/190940 (accessed 2026-10-20).